
<template>
  <div class="app-container">
    <!--查询表单-->
    <el-form :inline="true" class="demo-form-inline">
      <el-form-item>
        <el-input v-model="courseQuery.title" placeholder="课程名称" />
      </el-form-item>
      <el-form-item>
        <el-select
          v-model="courseQuery.status"
          clearable
          placeholder="课程状态"
        >
          <el-option :value="'Normal'" label="已发布" />
          <el-option :value="'Draft'" label="未发布" />
        </el-select>
      </el-form-item>
      <el-form-item label="添加时间"
        >
        <el-date-picker
          v-model="courseQuery.begin"
          type="datetime"
          placeholder="选择开始时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="courseQuery.end"
          type="datetime"
          placeholder="选择截止时间"
          value-format="yyyy-MM-dd HH:mm:ss"
          default-time="00:00:00"
        />
      </el-form-item>
      <el-button type="primary" icon="el-icon-search" @click="getList()" />
      <el-button type="default" @click="resetData()">清空</el-button>
    </el-form>
    <!-- 表格 -->
    <el-table :data="list" border fit highlight-current-row>
      <!-- 列 -->
      <el-table-column label="序号" width="70" align="center">
        <template slot-scope="scope">
          {{ (page - 1) * limit + scope.$index + 1 }}
        </template>
      </el-table-column>
      <el-table-column prop="title" label="名称" width="200" />
      <!-- 课程状态 -->
      <el-table-column label="课程状态" width="80">
        <template slot-scope="scope">
          <!-- scope表示作用域是整个表格 -->
          {{ scope.row.status === 'Normal' ? "已发布" : "未发布" }}
        </template>
      </el-table-column>
      <el-table-column prop="lessonNum" label="总课时" />
      <el-table-column prop="gmtCreate" label="添加时间"  />
      <el-table-column prop="viewCount" label="浏览数量" width="60" />
      <el-table-column label="操作" width="200" align="center">
        <template slot-scope="scope">
          <router-link :to="'/course/info/' + scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程基本信息</el-button>
          </router-link>
          <router-link :to="'/course/chapter/' + scope.row.id">
            <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程大纲</el-button>
          </router-link>
          <el-button
            type="danger"
            size="mini"
            icon="el-icon-delete"
            @click="removeDataById(scope.row.id)"
            >删除课程信息</el-button
          >
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页 -->
    <el-pagination
      :current-page="page"
      :page-size="limit"
      :total="total"
      style="padding: 30px 0; text-align: center"
      layout=" total, prev, pager, next, jumper"
      @current-change="getList"
    />
  </div>
</template>
<script>
import course from "@/api/edu/course";
export default {
  data() {
    return {
      list: null, //查询后接口返回的集合
      page: 1, //当前页
      limit: 10, //每页显示记录数,
      total: 0, //总记录数F
      courseQuery: {}, //条件封装对象
    };
  },
  created() {
    //调用methods中的方法
    this.getList();
    console.log(this.courseQuery);
  },
  methods: {
    removeDataById(cid){
     this.$confirm("此操作将删除课程, 是否继续?", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      }).then(()=>{
        //点击确定，执行then方法
        //调用删除的方法
        course
        .deleteCourse(cid)
        .then(response =>{
           this.$message({
          type: "success",
          message: "删除成功!",
        });
        //刷新页面
        this.getList()
        })
     })
    },
    //调用getTeacherListPage
    getList(page = 1) {
       this.page = page;
      course
        .pageCourseCondition(this.page, this.limit, this.courseQuery)
        .then((response) => {
          //请求成功
          //response接口返回数据
          //console.log(response);
          this.list = response.data.rows;
          this.total = response.data.total;
        })
        .catch((error) => {
          console.log(error);
        }); //请求失败
    },
    //清空方法
    resetData() {
      // 清空表单输入条件
      this.courseQuery = {};
      //查询所有数据
      this.getList();
    }
  },
};
</script>
